Mountain heart mystery: study probes right ventricle under low oxygen

NCT ID NCT07431554

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how the right side of the heart works when there is less oxygen, like at high altitudes. It involves 18 adults who have had HAPE (high-altitude pulmonary edema) in the past. Participants breathe special gas mixtures to mimic altitudes of 2,500 and 4,000 meters, and their heart function is measured at rest and during light exercise. The goal is to learn more so doctors can better support patients with heart or lung conditions who want to enjoy mountain activities.

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Conditions

The condition(s) this trial relates to.

altitude sickness Dyspnea high altitude pulmonary edema Hypoxia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Consultant Clinic of Pulmonology, University Hospital of Zurich

    RECRUITING

    Zurich, 8091, Switzerland

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact